Window-ventilator



C. M. BUHRMAN.

WINDOW VENTILATOH.

APPLICATION HLED Nov. 2a, 1920.

1,390,878. Pandsept. 13,1921;

' I N VEN TOR.

C .M ,Buhrmah A TTORNE Y.

UNITED sTATEs CATHEB'INE IMZ. BUHBMAN, OF GRACEHAM,

i TO HARRY W; STUL-L, ONE-FOURTH T PATENT OFFICE.

ELEANOR R. STULL, ALL OF ROCKY RIDG. MABYLAN D.

specification of Letters Patent. Pafenfd Sept. 13, 1921.

Application tiled November 23, 1920. Serial No. 426,022.

To all witam it may concern: r f i Be it known that I, CATHERNE M. Bonn- MAN, a citizen of the United States, residing at Graceham, in the county of Frederick and State ofMaryland, have invented certain new and useful Improvements 1n Window-Ventilators; and I do hereby declare the following' to be a full, clear,` and exact description of the invention, suchas will enable others skilled in the art to which it appertains to make and use thesame.

This invention relates to new and useful improvements in window `ventilators and has for its primary object the provision of a` transparent protectinp;` element operating m conjunction with the screens for excludy intg`` ram, snow, dust, etc. and thereby prevent such from entering` the room through the screen, but which will permit free circulation of air. m t f Another objectof this invention is the provision of means`` whereby the`protecting element may be adjusted in relation to the ,screen for regulating the circulation of air and which means is capable of retaining the protecting element in any of its adjnsted gositions and will permit of the dev1ce to e folded into a comparatively small article when desiring to store the same in a small space. i

A further object of this invention is the provision of a window ventilator of the above stated character which will be simple, durable and eflicient, and which may be manufactured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as the descriptions proceeds, the invention consists in certain novel features of construction, combination, and arrangement of parts as will be hereinafter more fully dcscribed and claimed.

For a complete understanding of my invention, reference is to be had to the fol- Iowing description and accompanying drawings, in which Figure 1 is a front elevation, illustrating a window ventilator construeted in accordance with my invention, t

Fig. 2 is a sectional view taken on the line 2-2 of F ig. 1, i

Fig. 3 is a section view taken on the line 3-3 of Fig. 1,

Fig. 4 is a detail sectional .view illustratinfr adj listing strips for the screen,

ig. 5 is a fragmentary sectional view illustrating the connection between one of the adjusting members and the `screen frame. Referring in detail to the drawings, the numeral 1 indcates a window frame having the usual lower sliding sash 2. `A screen 3 consisting of upper and* lower longitudinally' extending runs 4. is mounted within the window frame l below and in direct alinement with the movement of the window sash 2 and the latter is adapted to rest upon the upper run 4. The foraminous material 5 is secnred to the upper and lower runs 4 and has its end edges bound by metallic strips 6.` Adjusting members 7 are slidably connected to the upper and lower runs 4 by dove-tail tenons 8 fitting within dove-tail grooves 9 formed in saidfuppe'r and lower adapted to form screen frame, and

the end members of the are capable of adjustment longitudinally on the upper and lower runs so that the screen may be adjusted to fit window frames of different sizes. The end edges of the foraminous material 5 have frictional contact with the adiusting meinbers 7 to prevent fiies and other insects from gaining access to the room by way of the screen.

A protecting element 10 consisting of a rectangular frame 11 is associated withthe screen 3 and is connected to the lower run 4 of the screen by means of stra hinges 12 which rest upon the window S11 13. The frame 11 carries a transparentpanel 14 of glass or any other material suitable for the purpose and said frame is adapted to project upwardly and outwardly of the screen so as to permit free circulation of air through the screen but will exclude dust, rain, snow, etc. The frame 11 is of a width and height greater than the screen as shown clearly in Fig. 1 and has connected to its side edges protecting elements 15 constructed .I'om fabric or any other material suitable for the purpose and which is also secured to the side edges of the adjusting member 7 of the screen 3 so that the space between the side edges of the screen and protecting elements are closed, to prevent foreign matter from entering into the space between the protecting element and the a p'lurality of eyeletsl'l', any one of which is adapte'd to receive the free end of a hook 18 pivoted to the upper run of the frame 11, thereby providing a construction which will permit adjustment of the frame or protecting elementrlO toward and from the screen and which will retain the protecti'no' element inV any of its adjusted positions. qhe arm 16 4pivoted to'the screen and the hook and the latter 'piyoted to the protecting element frame7 providesa construction which will permit the protecting element to be folded in close proximity to the screen when desiring to storethe device in a comparatively small space.

A draining element 19 constructed from flexible water-proof material has one end .secured to the lower run of the frame 11 by a metallic strip and fasteners and is adapte'd to prevent water from draining into w a room under the frame 11. The draining element 19 has its ends 'extended from the frame 11 and secured to the protecting elements 15 by snap fasteners 20. The protecting elements 15 also are secured to the frame 11 and 4 by snap fasteners 21.

While I have shown and described the p'referred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing` from the spirit and scope of the invention as claimed.

Having thus deseribed my invention what I claim is A window ventilator comprising a screen adapted to be positioned in a window frame, a rectangular frame of a width and height greater than the screen hinged to said screen, fiexible means connecting the ends of the frame and screen together, a transparent panel carried by said frame, (lotach-able and adjustable c'onnections between the frame and the screen, a drainiug element secured to the lower portion of the frame and constructed of fiexible water-proof material and having its ends extended and detachably connected to the fi'exible means.

In testimony whereo'f I aflix my signature in presence of two witnesses.

CATHERINE M. BUHRMAN.

VVitnesses VV. ELMER BUHRMAN, BENJ. W. SAXTEN. 

